:root {
  --bg: #f6f7fb;
  --panel: #ffffff;
  --panel-2: #f0f2f8;
  --text: #191c27;
  --muted: #646a7e;
  --border: #e1e4ee;
  --accent: #5b6cff;
  --accent-ink: #ffffff;
  --ok: #18865a;
  --ok-bg: #e5f6ee;
  --warn: #a86400;
  --warn-bg: #fff3dc;
  --bad: #c43838;
  --bad-bg: #fdeaea;
  --user: #5b6cff;
  --user-ink: #ffffff;
  --code: #eef0f6;
  --shadow: 0 10px 30px rgba(20, 24, 40, .12);
  --radius: 12px;
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #0f1117;
    --panel: #171a23;
    --panel-2: #1e2230;
    --text: #e7e9f0;
    --muted: #9298ab;
    --border: #2a2f3f;
    --accent: #7b88ff;
    --accent-ink: #0f1117;
    --ok: #4cd391;
    --ok-bg: #12291f;
    --warn: #f0b44c;
    --warn-bg: #2d2412;
    --bad: #ff7a7a;
    --bad-bg: #321717;
    --user: #3c4ad6;
    --user-ink: #ffffff;
    --code: #232838;
    --shadow: 0 10px 30px rgba(0, 0, 0, .45);
    color-scheme: dark;
  }
}

* { box-sizing: border-box; }
html, body { height: 100%; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 15px/1.5 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  display: flex;
  flex-direction: column;
}
h1, h2 { margin: 0 0 .4em; line-height: 1.25; }
h1 { font-size: 1.5rem; }
h2 { font-size: 1.05rem; }
code, pre { font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; font-size: .9em; }
a { color: var(--accent); }
.muted { color: var(--muted); }
.small { font-size: .85rem; }
.row { display: flex; gap: 8px; align-items: center; flex-wrap: wrap; }
.row.end { justify-content: flex-end; margin-top: 16px; }
[hidden] { display: none !important; }

input, textarea, select {
  font: inherit;
  color: inherit;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 8px 10px;
  min-width: 0;
}
input:focus, textarea:focus { outline: 2px solid var(--accent); outline-offset: -1px; }

.btn {
  font: inherit;
  font-weight: 600;
  border: 1px solid transparent;
  background: var(--accent);
  color: var(--accent-ink);
  padding: 8px 14px;
  border-radius: 8px;
  cursor: pointer;
  white-space: nowrap;
}
.btn:hover { filter: brightness(1.07); }
.btn:disabled { opacity: .45; cursor: not-allowed; filter: none; }
.btn.ghost { background: transparent; color: var(--text); border-color: var(--border); }
.btn.danger { background: var(--bad); color: #fff; }
.btn.small { padding: 4px 10px; font-size: .85rem; }
.icon-btn { background: none; border: 0; color: inherit; font-size: 1.3rem; cursor: pointer; padding: 4px 8px; }

/* top bar */
.topbar {
  display: flex; align-items: center; gap: 12px;
  padding: 10px 16px;
  background: var(--panel);
  border-bottom: 1px solid var(--border);
}
.brand { font-weight: 700; display: flex; align-items: center; gap: 8px; }
.logo { width: 22px; height: 22px; border-radius: 6px; background: linear-gradient(135deg, var(--accent), #a35bff); }
.pills { margin-left: auto; display: flex; gap: 6px; flex-wrap: wrap; justify-content: flex-end; }
.pill { font-size: .78rem; padding: 2px 8px; border-radius: 99px; background: var(--panel-2); color: var(--muted); display: inline-flex; align-items: center; gap: 5px; }
.pill::before { content: ""; width: 7px; height: 7px; border-radius: 50%; background: var(--muted); }
.pill.on::before { background: var(--ok); }
.pill.off::before { background: var(--bad); }

/* layout */
.layout { flex: 1; display: grid; grid-template-columns: 340px 1fr; min-height: 0; }
.sidebar {
  background: var(--panel);
  border-right: 1px solid var(--border);
  display: flex; flex-direction: column; gap: 10px;
  padding: 12px;
  min-height: 0;
  overflow: hidden;
}
.tabs { display: grid; grid-template-columns: repeat(4, 1fr); gap: 4px; background: var(--panel-2); padding: 4px; border-radius: 10px; }
.tabs button {
  font: inherit; font-size: .8rem; font-weight: 600;
  border: 0; background: transparent; color: var(--muted);
  padding: 6px 2px; border-radius: 7px; cursor: pointer;
}
.tabs button[aria-selected="true"] { background: var(--panel); color: var(--text); box-shadow: 0 1px 3px rgba(0,0,0,.12); }
.backend-detail { margin: 0; font-size: .82rem; color: var(--muted); }
.model-list { list-style: none; margin: 0; padding: 0; overflow-y: auto; flex: 1; min-height: 120px; }
.model-list li {
  padding: 8px 10px; border-radius: 8px; cursor: pointer;
  display: grid; grid-template-columns: 1fr auto; gap: 2px 8px; align-items: center;
}
.model-list li:hover { background: var(--panel-2); }
.model-list li.active { background: color-mix(in srgb, var(--accent) 14%, transparent); }
.model-list .name { font-weight: 600; font-size: .9rem; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.model-list .meta { grid-column: 1 / -1; font-size: .78rem; color: var(--muted); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.model-list .size { font-size: .78rem; color: var(--muted); }
.model-list .section { cursor: default; font-size: .75rem; text-transform: uppercase; letter-spacing: .06em; color: var(--muted); padding-top: 12px; display: block; }
.model-list .section:hover { background: none; }
.model-list .hint { cursor: default; color: var(--muted); font-size: .85rem; display: block; }
.model-list .hint:hover { background: none; }
.model-list .actions { grid-column: 1 / -1; display: flex; gap: 6px; margin-top: 4px; }
.check { border-top: 1px solid var(--border); padding-top: 10px; }
.check p { font-size: .83rem; margin: 0 0 8px; }
.check form input { flex: 1; }

/* chat */
.chat { display: flex; flex-direction: column; min-height: 0; min-width: 0; }
.chat-head { display: flex; justify-content: space-between; align-items: center; gap: 12px; padding: 10px 20px; border-bottom: 1px solid var(--border); }
.current-model { font-weight: 700; overflow-wrap: anywhere; }
.settings { padding: 12px 20px; border-bottom: 1px solid var(--border); background: var(--panel); display: grid; gap: 10px; }
.settings label { display: grid; gap: 4px; font-size: .85rem; color: var(--muted); }
.settings textarea { resize: vertical; }
.settings input { width: 120px; }
.messages { flex: 1; overflow-y: auto; padding: 20px; display: flex; flex-direction: column; gap: 14px; }
.empty { margin: auto; max-width: 520px; text-align: center; }
.msg { max-width: min(760px, 92%); padding: 10px 14px; border-radius: var(--radius); overflow-wrap: anywhere; }
.msg.user { align-self: flex-end; background: var(--user); color: var(--user-ink); white-space: pre-wrap; }
.msg.assistant { align-self: flex-start; background: var(--panel); border: 1px solid var(--border); }
.msg.assistant p { margin: 0 0 .6em; }
.msg.assistant p:last-child { margin-bottom: 0; }
.msg.assistant pre { background: var(--code); padding: 10px; border-radius: 8px; overflow-x: auto; }
.msg.assistant code { background: var(--code); padding: 1px 4px; border-radius: 4px; }
.msg.assistant pre code { background: none; padding: 0; }
.msg.error { align-self: center; background: var(--bad-bg); color: var(--bad); font-size: .9rem; }
.msg .stats { margin-top: 6px; font-size: .75rem; color: var(--muted); }
.msg details.reasoning { font-size: .85rem; color: var(--muted); margin-bottom: 8px; white-space: pre-wrap; }
.cursor::after { content: "▍"; animation: blink 1s steps(1) infinite; color: var(--accent); }
@keyframes blink { 50% { opacity: 0; } }
.composer { display: flex; gap: 8px; padding: 12px 20px 18px; border-top: 1px solid var(--border); background: var(--bg); }
.composer textarea { flex: 1; resize: none; max-height: 200px; }

/* drop overlay */
.drop-overlay {
  position: fixed; inset: 0; z-index: 50;
  background: color-mix(in srgb, var(--accent) 18%, rgba(0,0,0,.35));
  display: grid; place-items: center; padding: 16px;
}
.drop-box {
  background: var(--panel); border: 3px dashed var(--accent); border-radius: 18px;
  padding: 40px 32px; text-align: center; max-width: 440px; box-shadow: var(--shadow);
  pointer-events: none;
}
.drop-icon { font-size: 2.6rem; color: var(--accent); }
.drop-title { font-weight: 700; font-size: 1.2rem; margin: 6px 0; }

/* dialogs */
dialog.sheet {
  border: 1px solid var(--border); border-radius: 16px; padding: 0;
  background: var(--panel); color: var(--text);
  width: min(760px, calc(100vw - 32px)); max-height: calc(100vh - 48px);
  box-shadow: var(--shadow);
}
dialog.sheet.narrow { width: min(480px, calc(100vw - 32px)); }
dialog.sheet > * { padding: 20px 22px; }
dialog::backdrop { background: rgba(10, 12, 20, .5); }
.inspect-head { display: flex; justify-content: space-between; gap: 12px; align-items: flex-start; }
.inspect-head h2 { font-size: 1.2rem; overflow-wrap: anywhere; }
.facts { display: flex; flex-wrap: wrap; gap: 6px; margin: 6px 0 14px; }
.fact { font-size: .78rem; background: var(--panel-2); padding: 2px 8px; border-radius: 99px; color: var(--muted); }
.verdict { padding: 12px 14px; border-radius: 10px; font-weight: 600; display: flex; gap: 10px; align-items: flex-start; }
.verdict .icon { font-size: 1.1rem; line-height: 1.3; }
.level-ok { background: var(--ok-bg); color: var(--ok); }
.level-warn { background: var(--warn-bg); color: var(--warn); }
.level-bad { background: var(--bad-bg); color: var(--bad); }
.kv { display: grid; grid-template-columns: auto 1fr; gap: 4px 12px; font-size: .88rem; margin: 14px 0; }
.kv dt { color: var(--muted); }
.kv dd { margin: 0; }
.options { display: grid; gap: 6px; margin: 10px 0; max-height: 42vh; overflow-y: auto; padding-right: 2px; }
.option {
  border: 1px solid var(--border); border-radius: 10px; padding: 10px 12px;
  display: grid; grid-template-columns: auto 1fr auto; gap: 4px 12px; align-items: center;
}
.option.recommended { border-color: var(--accent); box-shadow: 0 0 0 1px var(--accent) inset; }
.option .dot { width: 10px; height: 10px; border-radius: 50%; }
.option .dot.ok { background: var(--ok); }
.option .dot.warn { background: var(--warn); }
.option .dot.bad { background: var(--bad); }
.option .title { font-weight: 700; }
.option .title small { font-weight: 400; color: var(--muted); margin-left: 6px; }
.option .badge { font-size: .7rem; background: var(--accent); color: var(--accent-ink); padding: 1px 6px; border-radius: 99px; margin-left: 6px; vertical-align: 1px; }
.option .msg-line { grid-column: 2 / -1; font-size: .8rem; color: var(--muted); }
.option .buttons { display: flex; gap: 6px; flex-wrap: wrap; justify-content: flex-end; }
.notes { font-size: .88rem; padding-left: 18px; margin: 10px 0; }
.suggestions { display: flex; flex-wrap: wrap; gap: 6px; margin: 6px 0 10px; }
.suggestions button { font: inherit; font-size: .82rem; border: 1px solid var(--border); background: var(--panel-2); color: var(--text); border-radius: 99px; padding: 3px 10px; cursor: pointer; }
.confirm-size { font-size: 1.6rem; font-weight: 800; margin: 4px 0; }
.confirm-path { font-size: .82rem; color: var(--muted); overflow-wrap: anywhere; }
.spinner { width: 18px; height: 18px; border: 2px solid var(--border); border-top-color: var(--accent); border-radius: 50%; animation: spin .8s linear infinite; display: inline-block; vertical-align: -4px; margin-right: 8px; }
@keyframes spin { to { transform: rotate(360deg); } }

/* jobs + toasts */
.jobs { position: fixed; right: 16px; bottom: 90px; display: grid; gap: 8px; z-index: 40; width: min(360px, calc(100vw - 32px)); }
.job { background: var(--panel); border: 1px solid var(--border); border-radius: 12px; padding: 10px 12px; box-shadow: var(--shadow); font-size: .85rem; }
.job .top { display: flex; justify-content: space-between; gap: 8px; font-weight: 600; }
.job .bar { height: 6px; background: var(--panel-2); border-radius: 99px; overflow: hidden; margin: 8px 0 4px; }
.job .bar > span { display: block; height: 100%; background: var(--accent); width: 0; transition: width .3s; }
.job.done .bar > span { background: var(--ok); }
.job.error .bar > span { background: var(--bad); }
.job .status { color: var(--muted); font-size: .78rem; overflow-wrap: anywhere; }
.job .buttons { display: flex; gap: 6px; margin-top: 6px; justify-content: flex-end; }
.toasts { position: fixed; left: 50%; transform: translateX(-50%); bottom: 90px; display: grid; gap: 8px; z-index: 60; width: min(460px, calc(100vw - 32px)); }
.toast { background: var(--text); color: var(--bg); padding: 10px 14px; border-radius: 10px; box-shadow: var(--shadow); font-size: .9rem; }
.toast.bad { background: var(--bad); color: #fff; }

.only-mobile { display: none; }
@media (max-width: 820px) {
  .only-mobile { display: inline-block; }
  .layout { grid-template-columns: 1fr; }
  .sidebar { position: fixed; top: 51px; bottom: 0; left: 0; width: min(340px, 88vw); z-index: 30; transform: translateX(-102%); transition: transform .2s; box-shadow: var(--shadow); }
  .sidebar.open { transform: none; }
  .pills { display: none; }
  .chat-head, .messages, .composer, .settings { padding-left: 16px; padding-right: 16px; }
  .option { grid-template-columns: auto 1fr; }
  .option .buttons { grid-column: 1 / -1; justify-content: flex-start; }
}

/* ---- website additions ---- */
.check details { margin-top: 10px; font-size: .83rem; }
.check summary { cursor: pointer; font-weight: 600; color: var(--accent); }
.check details p { margin: 6px 0; }
.cmd { display: flex; gap: 6px; align-items: stretch; margin: 6px 0; }
.cmd code { flex: 1; display: block; background: var(--code); padding: 6px 8px; border-radius: 6px; overflow-x: auto; white-space: nowrap; font-size: .78rem; }
.cmd button { font: inherit; font-size: .75rem; border: 1px solid var(--border); background: var(--panel); color: var(--text); border-radius: 6px; cursor: pointer; padding: 0 8px; }
.settings-grid { display: grid; gap: 12px; }
.settings-grid label { display: grid; gap: 4px; font-size: .85rem; color: var(--muted); }
.settings-grid input { width: 100%; }
.settings-grid .two { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.machine-row { display: flex; flex-wrap: wrap; gap: 8px 14px; align-items: center; }
.machine-row label { display: inline-flex; align-items: center; gap: 6px; color: var(--muted); font-size: .85rem; }
.machine-row input { width: 76px; padding: 4px 8px; }
.footer-note { font-size: .75rem; color: var(--muted); }
.footer-note a { color: inherit; }